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jumper |
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The simplest form of an on/off switch. It is just a tiny, plastic-covered metal block, which is pushed onto two pins to close that circuit. It is used to select a myriad of functions on a printed circuit board or on a peripheral device. For example, on a PC, jumpers are used to select I/O addresses and IRQs. On an IDE drive, a jumper selects between master and slave. A jumper can be used in place of a more costly DIP switch. See jumperless.
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| Furthermore, I could see from the shortness of his legs that the brute himself was no jumper and probably no runner. I said that over the water we were not quite so generous; that with us, when a singer had lost his voice and a jumper had lost his legs, these parties ceased to draw. The locomotive whistled vigorously; the engineer, reversing the steam, backed the train for nearly a mile--retiring, like a jumper, in order to take a longer leap. |
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